static File saveTextFileWithoutTemp(File file, S contents) ctex {
  mkdirsForFile(file);
  temp var fileOutputStream = newFileOutputStream(file);
  var outputStreamWriter = new OutputStreamWriter(fileOutputStream, "UTF-8");
  var printWriter = new PrintWriter(outputStreamWriter);
  printWriter.print(unnull(contents));
  printWriter.close();
  ret file;
}

Began life as a copy of #1001042